Spider nevi are small capillaries that are seen on the surface of your
skin. Branches form (grow) from the one capillary and it can either look
like a small red spider or a splat (kind of like a squashed spider). They
are also referred to as spider angiomas. If you have less than 10 that
can be considered normal, more than that and it’s an indication of
chronic liver disease.
They can be found only above the waist, usually on the chest, upper arms, shoulders, face, neck and upper back.